LIST OF HOMOPTEROUS INSECTS. 509 



them at the tips, and full thrice the breadth of the chest between 

 them at the base ; hind appendage keeled, very slightly curved up- 

 ward, extending much beyond the tip of the abdomen, very slightly 

 tapering from the base to the tip : legs ferruginous ; thighs black ; 

 shanks slightly widened : fore-wings slightly lurid, tawny and punc- 

 tured at the base ; veins ferruginous ; three or four discoidal areoleis. 

 Length of the body 3 lines ; of the wings 6 lines. 



a. Port Natal. From Dr. Krauss' collection. 



12. OxTEHACHis UNicoi.oE, Fem. 



Picea ; pedes ferrtiginei ; femora nigra ; tihice latcB ; alcB anlicce 

 sublimpidce, basi fulvo-ferruginece ; alcB posticce limpidcs. 



Pitchy, thickly clothed with tawny hairs : head and fore-chest 

 thickly punctured : head transverse, not much broader than long, 

 flat, slightly convex along the hind border, truncated in front, a 

 little narrower than the fore-chest between the shoulders: fore-chest 

 ridged, rather low, rising vertically from the head ; shoulders rounded, 

 not prominent ; horns above conical, prismatic, inclined forward, as- 

 cending, slightly diverging ; their length equal to rather less than 

 twice the breadth of the chest between them ; hind appendage 

 keeled, extending far beyond the tip of the abdomen, very slightly 

 tapering from the base to the tip which is acute ; very slightly un- 

 dulating along the ridge : legs ferruginous ; thighs black ; shanks 

 dilated : fore-wings almost colourless, long, narrow, lanceolate, punc- 

 tured, ferruginous and partly tawny at the base ; veins ferruginous, 

 stout: hind-wings colourless. Length of the body 3 lines; of the 

 wings 7 lines. 



a — c. East Indies. Presented by Capt. Parry. 



13. OxYRHACHis RUDis, Mas. 



Ferruginea ; caput piceuni, antice ferrugineo-bimaculatum ; pro- 

 thorncis cornu posf.icum apire subtus serratum ; tibice dilatatce ; 

 alee limpidce ; alee anticoe margine poslico fusco maculatcB. 



Ferruginous : head pitchy, transverse, flat, finely punctured, 

 truncated, and with a ferruginous spot on each side in front, not 

 much broader than long, a little narrower than the fore-chest be- 

 tween the shoulders : fore-chest very roughly punctured, slightly 

 ridged, rising vertically from the head ; shoulders rounded, not 

 prominent : horns above very broad, conical, diverging, almost 

 horizontal, slightly curved ; disk of the inner side slightly concave 



